HackerOne Bug - Redirect Filter Bypass and Open Redirector

What is Open Redirector ?

Open Redirect vulnerability allows attacker of an web application to redirect users to any external sites. Here, there is no validation of the passed input by attacker. This is basically used in phishing attacks.

Final Exploit

This exploit should work against any random victim (user) of HackerOne. So, using my mind, I got an idea of combining 'Open Redirector' and 'Redirect Filter Bypass' to create an exploit to damage other users.